Vaporizer



Jmfly 15, 1947.

J. J. RICHARDS VAPORIZER Filed May 24, 1945 Patented July 15, 1947 VAPORIZER John J. Richards, Brookline, Mass., assignor to Inez I. Cragin, Brookline, Mass.

Application May 24, 1945, Serial No. 595,635

Claims. 1

This invention relates to Vaporizers or the like and has for its objects the provision of a vaporizer of simple and inexpensive construction that will be reliable and efficient in use.

In accordance with my invention, I provide a vaporizer consisting of a container for the liquid to be vaporized and a cover therefor having inlet and outlet ports and rotatably supporting an element carrying the liquid elevating member extendin downwardly into the liquid and raising liquid from the main body thereof as the element is rotated.

I form the liquid elevating member with its lower portions extending downwardly and inwardly into the liquid so that liquid is carried upwardly therealong by centrifugal force as the element rotates and with its upper portions extending upwardly and inwardly so that centrifugal force opposes travel of the elevated liquid upwardly of the intermediate portions. The intermediate portions thus constitute discharge portions and are spaced adjacent the walls of the container so that liquid discharged therefrom is more or less vaporized by impact against the container wall and is picked up by an air stream and discharged through the outlet port.

In the accompanying drawing, I have shown a vertical section through a vaporizer in accordance with my invention from which its several novel features and advantages will be readily apparent.

At l, I have shown a container for the liquid to be vaporized and the mouth 2 of the container I is shown as threaded to receive the cover 3.

The cover 3 has on its upper surface a casing for the electric motor 5 and on its lower surface an annular housin 6 flanged as at 1. A port 8 through the cover 3 accommodates the motor shaft 9 and establishes an air passage.

At it] I have shown a disc of substantially the diameter of the flange I and having on its upper surface fan establishing projections II. The disc H) has a hub 12 made fast on the shaft 9 by a set screw it, accessible when the plug M in the housing 6 is removed.

The casing 4 has an inlet port I4 through which the fan draws air and to establish an air stream passing through the container I to pick up vaporized liquid and carry it through the outlet port 15 shown as controlled by a valve l6. By this preferred construction, the air stream passes through the motor and is warmed suitably as the mot-or is cooled by it.

I have generally indicated at I1 the memher carried by the disc ill to extend downwardly into the liquid and to raise under the influence of centrifugal force liquid to be vaporized from the main body thereof. The member I! is preferably shaped from any suitable rod-like stock so that its bottom portions I8 are upwardly and outwardly inclined preferably at an angle of substantially to establish surfaces along which the liquid travels under the influence of centrifugal force. The portions IQ of the member H are upwardly and inwardly inclined so that centrifugal force opposes travel of the liquid therealong so that the intermediate portions 20 constitute discharge portions from which elevated liquid is driven by centrifugal force to be partially vaporized by impact against the wall of the container I. Preferably I form the portions 20 so that they extend horizontally as at 2| to space the junction between the portions l8 and 20 radially inwardly of the junction between the portions l9 and 20.

While the angular disposition of the portions IQ of the elevating member I! are effective to prevent the elevation of the liquid to the fan H, I ensure against any liquid collecting on the shaft 9 by forming the hub I2 with a collar 22. The collar 22 causes any liquid that may condense on the hub 12 and the shaft 9 to be thrown outwardly from the hub i2.

It is, of course, not essential that the fan and the member I! be motor driven and obviously the member l1 may be otherwise rotated and the air stream may be established by other means than those shown.

From the foregoing, it will be apparent that 1 have established an extremely simple vaporizer that may be economically manufactured and that is reliable and efficient in use.

What I therefore claim and desire to secure by Letters Patent is:

1. A vaporizer or the like comprising a container for the liquid to be vaporized, a removable cover for said container, said cover having an inlet port and an outlet port, an element rotatably supported by said cover, means to deliver air into said container through said inlet port, and a depending member carried by said element, said member being substantially V-shaped and of rodlike stock and shaped with its lower portions extending downwardly and inwardly into the liquid so that liquid is carried upwardly therealong by centrifugal force as said element rotates and with its upper portions extending upwardly and inwardly so that centrifugal force opposes upward travel of the liquid therealo-ng, the intermediate 3 portions of said member establishing a discharge portion disposed adjacent the wall of said container so that liquid discharged from said discharge portion by centrifugal force is vaporized by impact against said wall and carried by the delivered air through said outlet port.

2. The vaporizer of claim 1 in which the intermediate portion extends horizontally to space its junction with the upper portion radially outwardly of its junction with the lower portion.

3. The vaporizer of claim 1 in which the lower portions of the member are interconnected and define an angle of substantially 90.

4. A vaporizer or the like comprising a container for the liquid to be vaporized, aremovable cover for said container, said cover having an outlet port, a casing on the upper surface of said cover having an inlet port, an electric motor in said casing and having a shaft, said casing having an annular housing on its lower surface axially alined with said casing and a port for said shaft connecting said casing and said housing, a fan member having a hub connected to said shaft to establish an stream between said inlet and outlet ports, and a depending member carried by said element, said member being substantially V-shaped and of rod-like stock and shaped with its lower portions extending downwardly and inwardly into the liquid so that liquid is carried upwardly therealong by centrifugal force as said fan rotates and with its upper portions extending upwardly and inwardly so that centrifugal force opposes upward travel of the liquid therealong, the intermediate portions of said member establishing a discharge portion disposed adjacent the wall of said container so that liquid discharged from said member is vaporized 4 by impact against said wall and carried. by the air stream through said outlet port and said hub has an outwardly extending shoulder so that any liquid working up said hub is. thrown outwardly into the air stream.

5. A vaporizer or the like comprising a container for the liquid to be vaporized and having an inlet port and an outlet port, an element rotatably supported in said container, means to deliver air into said container through said inlet port, and a depending member carried by said element, said member being substantially V- shaped and of rod-like stock and shaped with its lower portions extending downwardly and inwardly into the liquid so that liquid is carried upwardly therealong by centrifugal force as said element rotates and with its upper portions extending upwardly and inwardly so that centrifugal force opposes upward travel of the liquid therealong, the intermediate portions of said member establishing a discharge portion disposed adjacent the Wall of said container so that liquid discharged from said discharge portion by centrifugal force is vaporized by impact against said wall and carried by the delivered air through said outlet port.

JOHN J. RICHARDS.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,026,946 Comins May 21, 1912 709,556 Prott Sept. 23, 1902 

